单项选择题

There is an arrow on the wall______the direction of advance.

A．pointing
B．identifying
C．marking
D．indicating
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单项选择题
When did the presentation skills course begin
A．On Saturday
B．On Sunday
C．On Monday
D．On Friday
单项选择题
Why did the training program play such an important role nowadays
A．Because International Summer School is popular.
B．Because the training program has proved popular.
C．Because so much emphasis is placed on the popular area of work, study and lecture.
D．Because people pay more attention to oral skills in all area of work, study and lecture.
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